▎ 摘　　要

NOVELTY - A molybdenum disulfide graphene composite nano-material preparing method involves stirring 0.0350-0.0450 mol/l mixed solution containing graphene oxide and trihydroxymethyl aminomethane buffer solution, dopamine, sodium molybdate, and thiourea to obtain a mixed solution. The mixed solution is reacted, followed by separating centrifugally the reacted product after reaction, washing the separated product using de-ionized water and ethanol, and drying to obtain black powder. The black powder is calcined at 600-800 degrees C for 1-3 hours under nitrogen atmosphere to obtain the finished product. USE - Method for preparing molybdenum disulfide graphene composite nano-material that is utilized in lithium ion battery cathode material. ADVANTAGE - The method enables preparing the molybdenum disulfide graphene composite nano-material with high material loading uniformity and wide application range, in a simple manner. DETAILED DESCRIPTION - A molybdenum disulfide graphene composite nano-material preparing method involves stirring 0.0350-0.0450 mol/l mixed solution containing graphene oxide and trihydroxymethyl aminomethane buffer solution, dopamine, sodium molybdate, and thiourea with graphene oxide, dopamine, molybdate, thiourea mole ratio of 1 :0.075-0.235:0.33:2.10 to obtain a mixed solution. The mixed solution is reacted at 180-240 degrees C for 12-24 hours, followed by separating centrifugally the reacted product after reaction, washing the separated product using de-ionized water and ethanol, and drying to obtain black powder. The black powder is calcined at 600-800 degrees C for 1-3 hours under nitrogen atmosphere to obtain the finished product.